Home / 27,621.12-38,120.90-16,293.80

Finding the Fourth Proportional to 27,621.12, 38,120.90 and 16,293.80

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Solution

The fourth proportional to 27,621.12, 38,120.90 and 16,293.80 is: 22,487.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,621.12 : 38,120.90 = 16,293.80 : x
  2. Step 2: Convert to fraction form
    27,621.12/38,120.90 = 16,293.80/x
  3. Step 3: Cross multiply
    27,621.12x = 38,120.90 × 16,293.80
  4. Step 4: Simplify right side
    27,621.12x = 621,134,320.42
  5. Step 5: Solve for x
    x = 621,134,320.42/27,621.12
  6. Step 6: Final answer
    x = 22,487.66

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.